Production Run Plan R-HRS

Proton Elastic Kinematics

• 2nd Pass (E = 4.5 GeV) Time estimate: 15 hours

* If you need to increase the spectrometer momentum setting, make sure you cycle Q2 and Q3 as per the cycling procedure.
* Elastic electron rates assume 20 μA on 15 cm LH2 target, 5 mSr acceptance.
* A GMp expert will check the data quality.

Target	Raster	Ebeam [GeV]	P0 [GeV/c]	θe [deg]	Q2 [GeV2]	Electron Rate [Hz] at 20 μA	hours at 20 μA
15 cm LH2	2 x 2 mm2	4.481	1.706	48.74	5.21	2.4	12 (for 100k events)
15 cm Dummy	2 x 2 mm2	4.481	1.706	48.74	5.21	0.4	2.5 (for 3.6k events)

• 4th Pass (E = 8.8 GeV) Time estimate: 22 days

Target	Raster	Ebeam [GeV]	P0 [GeV/c]	θe [deg]	Q2 [GeV2]	Electron Rate [Hz] at 20 μA	days at 20 μA
15 cm LH2	2 x 2 mm2	8.841	2.101	48.74	12.65	0.018	21 (for 32k events)
15 cm Dummy	2 x 2 mm2	8.841	2.101	48.74	12.65	----

• 5th Pass (E = 11.0 GeV) Time estimate: days

Target	Raster	Ebeam [GeV]	P0 [GeV/c]	θe [deg]	Q2 [GeV2]	Electron Rate [Hz] at 20 μA	days at 20 μA
15 cm LH2	2 x 2 mm2	11.021	2.204	48.74	16.54	0.003	38 (for 10k events)
15 cm Dummy	2 x 2 mm2	11.021	2.204	48.74	16.54	----